Mast housing



FIG. 1 is a front right perspective view of a mast housing;

FIG. 2 is a right side view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear perspective view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a front left perspective view showing features of the bottomthereof; and,

FIG. 7 is a rear view thereof.

The broken lines shown in the drawings represent unclaimed environmentonly and form no part of the claimed design.

CLAIM The ornamental design for a mast housing, as shown and described.